The PRC1 complex contains a ubiquitin ligase that monoubiquitinylates histone H2A at lysine 119 in the H2A C-terminal tail

TLS Online TPP Program

#Id: 7679

#Unit 1. Molecules and their Interaction Relevant to Biology

Because they cannot rotate, each peptide bond holds 6 atoms in a plane.

However, most possible angles of Phi (φ) and Psi (ψ) are impossible due to clashes

between atoms. These balls are much smaller than the atoms they represent.

TLS Online TPP Program

#Id: 10106

#Unit 4. Cell Communication and Cell Signaling

Focal adhesions 

Adhesion type- Cell-matrix

Adhesion receptors- Integrins

Cytoskeletal attachment- Actin filaments

TLS Online TPP Program

#Id: 2162

#Unit 11. Evolution and Behavior

Natural selection’s idea is developed by Charles Darwin & Alfred Russel Wallace independently.   

TLS Online TPP Program

#Id: 7010

#Unit 5. Developmental Biology

Precise control of the division and differentiation of stem cell types is necessary for building the embryo as well as maintaining and regenerating tissues in the adult. progenitor differentiation through endocrine, paracrine, or juxtacrine mechanisms.

TLS Online TPP Program

#Id: 5074

#Unit 6. System Physiology – Plant

Experiment on coleoptile phototropism